Version: (using KDE 4.2.90) Installed from: SuSE RPMs I tested KDE 4.3 RC1 from KDE Four LiveCD. The problem is that your font preferences aren't used in the chat window when you've sent some text. I mean, the text you write is fine in the "textbox", but you send it and it appears in the conversation, it ignores color and style, but not font and size. In addition, the other person in the chat receives the text without format: it uses default font, size, color and style. I'll attach some screenshots to show it...
Created attachment 35086 [details] Font problems with Kopete
This bug is still present in KDE 4.3 RC2
The bug is stil present in KDE 4.3 RC3. It seems that only works when you set your font preferences from the Format Toolbar, but not from the Settings dialog (Settings->Chat window->Font & Color).
Thanks for pointing out the duplicate. Merging with bug 179418. Thanks *** This bug has been marked as a duplicate of bug 179418 ***